Patents by Inventor Junichi Hiramatsu

Junichi Hiramatsu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for non-destructive judgment of pearl quality
    Patent number: 9903852
    Abstract: The present invention relates to a method for non-destructive judgment of pearl quality by measuring the ultraviolet-visible reflectance spectrum and/or ultraviolet-visible fluorescence spectrum of a pearl or pearl shell to be inspected and comparing the values obtained with those preliminarily measured for a normal pearl or pearl shell. The present invention also relates to a non-destructive inspection apparatus of pearl quality. According to the present invention, the quality of the aimed pearl or pearl shell can be easily and rapidly judged under a non-destructive condition.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: February 27, 2018
    Inventors: Kiyohito Nagai, Junichi Hiramatsu, Yasunori Iwahashi
  • METHOD FOR NON-DESTRUCTIVE JUDGMENT OF PEARL QUALITY
    Publication number: 20120050526
    Abstract: The present invention relates to a method for non-destructive judgment of pearl quality by measuring the ultraviolet-visible reflectance spectrum and/or ultraviolet-visible fluorescence spectrum of a pearl or pearl shell to be inspected and comparing the values obtained with those preliminarily measured for a normal pearl or pearl shell. The present invention also relates to a non-destructive inspection apparatus of pearl quality. According to the present invention, the quality of the aimed pearl or pearl shell can be easily and rapidly judged under a non-destructive condition.
    Type: Application
    Filed: January 4, 2011
    Publication date: March 1, 2012
    Applicant: KABUSHIKI KAISHA MIKIMOTO
    Inventors: Kiyohito Nagai, Junichi Hiramatsu, Yasunori Iwahashi